/Engine/Source/Editor/SkeletalMeshEditor/Public/SkeletalMeshEditorSubsystem.h
Copy the build options with the specified LOD build settings.
static void GetLodBuildSettings ( const [USkeletalMesh](API\Runtime\Engine\Engine\USkeletalMesh) * SkeletalMesh, const int32 LodIndex, [FSkeletalMeshBuildSettings](API\Runtime\Engine\Engine\FSkeletalMeshBuildSettings) & OutBuildOptions )